US20200086340A1 - Application nozzle - Google Patents

Application nozzle Download PDF

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Publication number
US20200086340A1
US20200086340A1 US16/616,585 US201816616585A US2020086340A1 US 20200086340 A1 US20200086340 A1 US 20200086340A1 US 201816616585 A US201816616585 A US 201816616585A US 2020086340 A1 US2020086340 A1 US 2020086340A1
Authority
US
United States
Prior art keywords
channels
material outlet
distributor
nozzle body
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/616,585
Other languages
English (en)
Inventor
Sten Mittag
Heiko Bitzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco IAS GmbH
Original Assignee
Atlas Copco IAS GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco IAS GmbH filed Critical Atlas Copco IAS GmbH
Assigned to ATLAS COPCO IAS GMBH reassignment ATLAS COPCO IAS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Bitzel, Heiko, Mittag, Sten
Publication of US20200086340A1 publication Critical patent/US20200086340A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet

Definitions

  • the invention relates to an application nozzle for application of viscous material to a workpiece, in accordance with the preamble of claim 1 .
  • Such an application nozzle is known, for example, from U.S. Pat. Nos. 6,695,923 B1 and 7,332,035 B1. It has a nozzle body having a material inlet opening, with which a metering valve is connected, by way of which valve the viscous material can be introduced into a distributor chamber forming a cavity in the nozzle body, in metered manner. Downward the distributor chamber is delimited by an application plate, in which material outlet openings arranged in one or more rows are situated. Such application nozzles allow material application over an area.
  • the outlet channels run essentially parallel to one another.
  • the inlet channel, if applicable including partial inlet channels, the distributor channels, and the outlet channels form a cavity in the nozzle body that is symmetrical with reference to a center plane.
  • the material application is further improved if the distributor channels are arranged, at every point, at a distance from the material outlet surface that is at least 1.5 times as great and preferably at least 2 times as great as the diameter of the material outlet openings.
  • all the material outlet openings have the same size.
  • the material outlet openings have different sizes, wherein the preferred ratio of the distance of the distributor channels from the material outlet surface to the diameter of the material outlet openings relates to the largest material outlet opening, in each instance.
  • the outlet channels have an initial region that branches off from one of the distributor channels and an end region that extends to the related material outlet opening, in each instance, wherein the diameter of the end region is smaller than the diameter of the initial region.
  • the diameter of each of the outlet channels decreases in steps at the transition from the initial region to the end region.
  • the material outlet surface is preferably formed by means of grinding a surface of the blank, wherein the grinding preferably takes place after drilling of the end regions of the outlet channels. Since drilling of the end regions can only take place with great effort to achieve such precision that the inner walls that delimit the initial regions align precisely with the inner walls that delimit the end regions, the end regions are configured with a smaller diameter than the initial regions, so that no offset of the end regions relative to the initial regions is formed even if their center axes do not precisely coincide.
  • the end regions run essentially perpendicular to the material outlet surface. This can be achieved with great precision by means of the preferred production method with 3D printing of the blank and subsequent drilling of the end regions, and grinding with subsequent hardening of a surface of the blank, if applicable, bringing about the formation of the material outlet surface, so that the inner surfaces of the end regions enclose a 90° angle, as precisely as possible, with the material outlet surface.
  • a further improvement in the flow behavior of the viscous material can be achieved if each of the distributor channels has at least two consecutive sections that are curved in different directions. It is furthermore advantageous, in this connection, if each of the distributor channels first narrows, proceeding from the branching point, and then widens again. In this regard, it is furthermore preferred that each of the distributor channels narrows again toward its end.
  • the nozzle body is produced in one piece and is preferably produced from metal, in particular stainless steel or aluminum.
  • the nozzle body has only one cavity formed by the inlet channel, the distributor channels, and the outlet channels.
  • the nozzle body has two or more cavities having the identical geometry, each formed by an inlet channel, two distributor channels, and multiple outlet channels.
  • the material outlet openings and, if applicable, the further material outlet openings of each row are arranged at the same distances from one another. Furthermore, it is preferred that the last of the material outlet openings or of the further material outlet openings of each row, in each instance, are arranged at a distance from an edge of the nozzle body that corresponds to half the distance between the material outlet openings or between the further material outlet openings. Then it is possible to join multiple such application nozzles together, so as to lengthen the row of the material outlet openings, while maintaining the reciprocal distance.
  • FIG. 1 an application nozzle in a perspective view
  • FIG. 2 the application nozzle according to FIG. 1 in a top view onto its end face
  • FIG. 3 a representation of the application nozzle according to FIGS. 1, 2 in section along the line A-A.
  • the application nozzle 10 shown in the drawing serves for application of a viscous material to a workpiece. It has a nozzle body 12 that is produced in one piece from stainless steel or aluminum, and in which a cavity 14 is arranged.
  • the viscous material can be introduced into the cavity 14 by way of a material inlet opening 16 , with which a metering valve can be connected.
  • the nozzle body 12 Downward, the nozzle body 12 is delimited by a material outlet surface 18 , in which multiple material outlet openings 20 are arranged in a row.
  • An inlet channel 22 extends from the material inlet opening 16 all the way to a branching point 24 , from which two distributor channels 26 extend in opposite directions.
  • a plurality of outlet channels 28 extend from each of the distributor channels 26 to the material outlet surface 18 , wherein each of the outlet channels 28 ends at one of the material outlet openings 20 .
  • the cavity 14 formed by the inlet channel 22 , the distributor channels 26 , and the outlet channels 28 is symmetrical with reference to a center plane 30 that stands perpendicular to the drawing plane of FIG. 3 .
  • Each of the distributor channels 26 has an essentially S-shaped curvature having a first section 32 , which is curved in a first direction, and a second section 34 , which is curved in a second direction opposite to the first direction.
  • the cross-section of the distributor channels 26 narrows at first, proceeding from the branching point 24 , before it widens again and narrows again toward an end 36 of the distributor channel 26 .
  • All of the outlet channels 28 that branch off from one of the distributor channels 26 have a different length, wherein this length is measured between the respective distributor channel 26 and the material outlet surface 18 .
  • the length of the outlet channels 28 is all the shorter, the farther away from the branching point 24 the respective outlet channel 28 is located.
  • the outlet channel 28 that begins directly at the branching point 24 branches off both from one and from the other channel 26 .
  • the length of the outlet channels 28 corresponds to at least 1.5 times, in the exemplary embodiment shown actually 3 times the diameter of the material outlet openings 20 , which all have an identical size.
  • Each of the outlet channels 28 furthermore has an initial region 38 that branches off directly from the respective distributor channel 26 , and an end region 40 that extends to the related material outlet opening 20 , wherein the end regions 40 have a lesser diameter than the initial regions 38 .
  • the transition between the initial region 38 and the end region 40 of each of the outlet channels 28 takes place at a step 42 .
  • the application nozzle 10 has a further cavity 14 ′ in its nozzle body 12 , which cavity is configured to be identical with the cavity 14 .
  • the further cavity 14 ′ is formed by a further inlet channel 22 ′, two further distributor channels 26 ′, and further outlet channels 28 ′, and can be filled with viscous material by way of a further material inlet opening 16 ′.
  • the further outlet channels 28 ′ end at further material outlet openings 20 ′, which are arranged in a row in the material outlet surface 18 , which row represents a continuation of the row formed by the material outlet openings 20 .
  • a metering valve can be connected with the further material outlet openings 16 ′, as well.
  • the material outlet openings 20 and the further material outlet openings 20 ′ are arranged at equal reciprocal distances.
  • the outermost of the material outlet openings 20 or of the further material outlet openings 20 ′, in each instance, are arranged at a distance from an edge 44 of the nozzle body 12 that corresponds to half the reciprocal distance.
  • a blank of the nozzle body 12 is produced by means of a 3D printing method. No material outlet openings 20 , 20 ′ are present yet in this blank, since the end regions 40 , 40 ′ of the outlet channels 28 , 28 ′ have not yet been formed. These are introduced in a second method step, by drilling into the blank. Finally, the material outlet surface 18 is formed by means of grinding the surface of the blank that is directed downward.
  • the invention relates to an application nozzle 10 for application of viscous material to a workpiece, having a nozzle body 12 that has a material inlet opening 16 and multiple material outlet openings 20 , which are arranged in at least one row in a material outlet surface 18 .
  • an inlet channel 22 extends in the nozzle body 12 from the material inlet opening 16 all the way to at least one branching point 24 , that two distributor channels 26 extend in the nozzle body 12 in opposite directions from the inlet channel 22 at each branching point 24 , wherein the distributor channels 26 are arranged at a distance from the material outlet surface 18 over their entire length, in each instance, and that at least one outlet channel 28 extends in the nozzle body 12 from each distributor channel 26 all the way to one of the material outlet openings 20 , in each instance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US16/616,585 2017-06-12 2018-05-14 Application nozzle Abandoned US20200086340A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017112892.1 2017-06-12
DE102017112892.1A DE102017112892A1 (de) 2017-06-12 2017-06-12 Auftragsdüse
PCT/EP2018/062320 WO2018228761A1 (de) 2017-06-12 2018-05-14 Auftragsdüse

Publications (1)

Publication Number Publication Date
US20200086340A1 true US20200086340A1 (en) 2020-03-19

Family

ID=62196545

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/616,585 Abandoned US20200086340A1 (en) 2017-06-12 2018-05-14 Application nozzle

Country Status (6)

Country Link
US (1) US20200086340A1 (de)
EP (1) EP3638428A1 (de)
KR (1) KR20200017400A (de)
CN (1) CN110730691A (de)
DE (1) DE102017112892A1 (de)
WO (1) WO2018228761A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024101527A1 (ko) * 2022-11-11 2024-05-16 주식회사 티앤알바이오팹 대면적 프린팅을 위한 슬릿 노즐

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687137A (en) * 1986-03-20 1987-08-18 Nordson Corporation Continuous/intermittent adhesive dispensing apparatus
US5334247A (en) * 1991-07-25 1994-08-02 Eastman Kodak Company Coater design for low flowrate coating applications
US20030131791A1 (en) 2000-11-21 2003-07-17 Schultz Carl L. Multiple orifice applicator system and method of using same
US6695923B1 (en) 2000-11-21 2004-02-24 Sealant Equipment & Engineering, Inc. Multiple orifice applicator system and method of using same
DE10256641A1 (de) * 2002-12-03 2004-06-17 Kiener Maschinenbau Gmbh Verfahren zur Einstellung einer Arbeitsbreite einer Düsenanordnung zum Auftragen eines fließfähigen Mediums auf eine Materialbahn und eine Vorrichtung zur Durchführung des Verfahrens
GB0312974D0 (en) * 2003-06-06 2003-07-09 Spencer Alan Dispensing apparatus and a dispensing nozzle for use therewith
US7041171B2 (en) * 2003-09-10 2006-05-09 Kastalon, Inc. Nozzle for use in rotational casting apparatus
DE102006021309A1 (de) * 2006-05-02 2007-11-08 Hauni Maschinenbau Aktiengesellschaft Leimauftragsdüse
DE102008047266A1 (de) * 2008-09-12 2010-04-15 Nordson Corp., Westlake Vorrichtung zum Auftragen von Fluiden
DE102009048820A1 (de) * 2009-10-09 2011-04-14 Andritz Küsters Gmbh Vorhang-Auftragswerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024101527A1 (ko) * 2022-11-11 2024-05-16 주식회사 티앤알바이오팹 대면적 프린팅을 위한 슬릿 노즐

Also Published As

Publication number Publication date
EP3638428A1 (de) 2020-04-22
DE102017112892A1 (de) 2018-12-13
KR20200017400A (ko) 2020-02-18
WO2018228761A1 (de) 2018-12-20
CN110730691A (zh) 2020-01-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ATLAS COPCO IAS GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MITTAG, STEN;BITZEL, HEIKO;REEL/FRAME:051102/0470

Effective date: 20191121

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION